Carving-machine.



PATLNTLD 001230, 1906. ms. VAN ACKER.

CARVING MACHINE. APPLICATION FILED. JULY 7, '1905,

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No. 834,346. PTBNTBD 00T, 3o, 190s.

C. S; VAN AGKER.

CARVING MACHINE. A rLIcATIoN FILED JULY 1, 1905.

3 SHEETS-SHEETS.

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UNITED STATES PATENT oEEroE.l

CHARLES sMiTzvAN ACKEE, lor EEcLoo, BELGIUM.

To a/ZZ ich/0m,y it may concern,..- Be it known that I, CHARLES SMITzVAN ACKEE, sculptor, a subject of the Belgian King, residing at Eecloo,Belgium, have 1nventednew 'and useful `Improvements in Carving-Machines;and I do hereby declare the following to be a full, clear, and exactdescriptionof the same. y f

My presentinvention relates to carvingmachines, theobject being toprovide an improved machine of this class for economically carvingornaments and statues of any desired design in wood, marble, or othermaterial and also copying patterns of any desired kind, the improvedmachine being capable of producing' in one operation any number ofcopies of the pattern. i This invention comprises a universallymovablesupport adapted to carry a plurality of forming-tools and a tracer in amanner to ermit the latter to be guided to trace the ines of a patternor model and reproduce the same-,through the forming-tools upon thematerial to be modeled, the said support being mounted upon anarticulated or jointed. frameworkin a manner to permit universalmovement of the support, and thereby cause movement of each of theforming-tools in exact correspondence to the movement .of the tracer.

The invention nino-hanf@ its nbjnnn the provision of improvedtool-holders for rotatively mounting the tools on the support in a4manner to permit vertical adjustment of said tools and maintain the samein operative connection with a driving-shaft, there being alsoprovidedimproved means for adjusting .the tracer uponthe support.

In the drawings, Figure tion of the machine embodying the main featuresof my invention. Fig. 2- is a side elevation, and Fig. 3 is a plan view,thereof. Figs.

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4 and 5 are tail views of the improved toolholders. 3 Figs. 6 and 7 areend and front elevations, respectively, of vthe preferred form ofdriving means. l

The machine is mounted upon a supporting-frame 1, provided withvertically-extending pillars2, which directly carry the operatmechanism,a'nd a bed-plate 35 on which the pattern and material to be carved aremounted. Bearings 2a carry vertically-disposed pins or spindles 3, whichextend through bearing-washers 3a, the latter being connected labove andbelow by rods 5. As shown. said rods extend through the spindlespivotally mounted on-the spindle 6. outer ends of said frames 7 carryspindles 9,

1 is a front eleva- Patent-d o ctl eo, 1906.

3 and serve to prevent rotation of the latter. I

- Horizontal supporting-arms 48L are mounted on spindles 3, the upperand lower arms'4a at each side of themachine being connected at theirfree ends by vertical pins or spindles 6. Said arms 4a are rigidlyconnected by struts 4b, forming at each side ofthe machine twohorizontal swinging and carrying frames 4. There are also provided twosimilar horizontal swingingl and carrying frames 7, composed 4of upperandlower members 7a; connected by struts 7b, which frames lage e onwhich are pivotally mounted horizontallyswinging framemembers 10, thelatter being pivotally yconnected to vertical supportingspindles 11, onwhich horizontal ro s or bars 12 are secured. In order to effectmovement of the swinging frames 4 and 7in unison, the latter areconnected by rods 5a and 8,-

= the latter extendingthrough the spindles 6 and'9. The upper horizontalrod 12 is provided on its outer opposite ends with ktrunnions 12a, onwhich vertically-swingingsuporting-links 13 are pivotally mounted, thesaid links being connected at their other ends with arms 14a, extendingupwardly and rigidly secured to the tool-support 14. The

` tool-support 14 is connected at its lower end with the ins 11 by meansof links 15. Each' vof the lin s 13 is provided with a plurality of`holes adapted to receive the trunnions 12a and like trunnions formed onthe supportingarm 14a which construction permits the toolsupport 14 tobe inclined to any desired osition from the vertical in either directionfiom the position shown in Fig. 2. w

From the foregoing it will be seenl'that free movement of thetool-support is permitted in a vertical plane, the swinging barsv 1()permitting movement endwise of the -machine in a horizontal plane withinthe radii formed by the spindles 9 as the centers. If the work requiresla longitudinal movement of the. support 14greater thanthe aims-10aiford, such movement is permitted` by the swinging frame members 4 and7, which also permit of the rearward movement of the toolsu port 1K4 ina direction toward the pillars- 2, as will be "clearly seen by referenceto Fig. 3 ofthe drawings. l

In order to normally maintain the toolsupport in the vertical lane inwhich it isi adjusted and to permit t e same to be freely swung in suchplane without requiring the IOO IIO

operator to` lift the full weight of the toolbase, the latter iscounterbalanced inthe following manner: A supporting-plate 34 is mountedat its upper and lower ends .and centrally upon the bars 12, said platecarrying horizontal pivot-pins 32, on which swinging. levers 31 arepivotally mounted. Each of said levers carries at its outer end an.adjustable weight 30 and is provided on its opposite end with a.segmental sheave `over which ropes or Vchains 33are trained. VSaidropes .are `secured, to the levers ,31 at one end and atfitheir oppositeends to the tool-.suppor-tw14.

It will be obvious-'from the foregoing that the weights may .be adjustedtoward Aa-nd away. from-the ivots 32 ina manner to accurately counter.alance -thetool-support, the latter being provided with handles 42,adapted. tosbe graspedbytihe operator during the carving operation.

A driving-shaft'18 is mounted Lon the toolbase "in bearings 17,projecting vupward-ly therefrom, said shaft carrying a plurality oflongitudinally adjustable beveled `frictionwheels 1.9. As shown,the-tool-base carries four carving ori-forming tools 27, [althoughthenumber may be either increased -or reduced-by :providing atool-support oflfthe required length. :Each ofsaid Ktools @is mounted inholders which permit of -,adjustment and anchorage ,of the:,ftool ina-vertical plane, -so that 'the latternmay be continuously rotated in,its adjusted position, the said holders ,ibeingshown in detail in Figs.4 land 5, to which reference will-now be made. .Said holders comprise`outer clamping-sleeves 22, `split lat 222L and provided with ears,thumb-nuts 2.3, and belts 23a for bringing the `split-sections together.Said sleeve is mounted by means of pins 26, ladaptedto be secured tothesupport l14 in any desirable manner. AThe upper ends of,saidssleevges ,are yprovided with beveleder lcam-shaped .surfaces 22bfor a purpose which will :now :be described. -T-he outer:clamping-sleeves 22 fcarry` inner bearing-sleeves 25, whichare .adaptedfto be clamped in place by the {thumb-nuts 23.

Vertical-ly -disposed l tool spindles 20, on whichl the tools 27 `areidirectly mounted, leX- tend ytln-'oughand have bearing in the sleeves25 and carry on-their upper ends beveled friction-wheels 21. 'The saidsleeves 25 are provided withpins 24, adapted for engagement with lt-he,beveled Aupper ends '221, serving when the sleeve 25 is rotated topermit anydesired vertical adjustment of thesleeve 25 withinthe limits`of said cam, the sleeve 22 being clamped .upon the sleeve 25 when,adjeustment is effected. Itzwill be obvious that as the tool-spindle 20is adjusted in different vertical ,posi-tions ya corres ondingadjustmentbf the wheels y1,9 will be necessary, which adjustment may beeffected in any 1desirable manner. I preferably provide wheels 19 havinga beveled surface of greater depth than the wheels 21, the beveledportion of said wheels 19 being increased according to the pitch orthrow of the beveled portion 22h.

Means are provided whereby the downward vertical movement of thetool-support may be limited to prevent the tracer and the ,forming-toolsfrom being accidentally injured by sudden contact with the bed-plate 35.It will be understood that the counterweights would normally prevent thetoolsupport from dropping by gravity and injuringthe tools Land tracer;but this additional means 'is provided in case .theitoolsupportweresuddenly thrust in a downward irection by .accident or carelessusage. The said means consists of a screw 41, which has free engagementwith a lug 34u v'and ksupporting engagement -with ya lug 34h, carried byplate 34. A -nut 50 is provided having threaded engagement with thescrew41 and a projecting ar1n51, apertured to yreceive one end ofthe bolt 52.The opposite end of said bolt is rigidly securedto an arm 1'4",-anchorednto the tool-support. On the upper end of the bolt`52'thereisfprovided aynut adapted to limit downward movement. It willbeseen from the foregoing that if it is desired yto -ra-i se ythetool-support from the `positionshown in Fig. y2 the bolt l52 passesfreely throughthe 4farm 51, whereas -if it is. desi-red to :lowerthetool-,support from said pesi-tion the nut on Asaid ,bolt engaging theprojection on nut 50 will prevent such downward movement. The Vtracer 28isqadjustably mounted upon the tool-base 14 by `means, of -a ser-ew 29,Fig. 1, passing` through lugs 29a, formed on the tool-base. As shown,the tracer 28 is mounted on a spindle 20, whichis formed integral withthescrew-threaded `rod 29.

Theshaft 18 may be driven -byany ineans which will permit of .universaladjustment `of the ytool-base. The driving means Aherein shown consistsof a driving-shaft 37, connected y.with the shaft 18 by means of auniversall 4joint :36 and anysuitable form of flexible shafting 36a. Theshaft37 carries a sheave 39, which isconnected b vany suitable kind of-belting ith la driving-sheave 40, mounted upon 1a shaft 43, carryingfast ,and loose belt-pulleys. Itwill be obvious, howe'ver, that suitablefoot-power means can be snbstitutedwhere it is desired to operate -themechanism manually.

The pattern or model -to be 'reproduced fis arranged and fastenedbeneath the tracer 28,

and the pieces ofwoed to be carved @are likewiselarranged `and fastenedbeneath the tools 27 ,upon the bed-plate 35, the operation .proceedingin a manner -well Iknown in carvingmachines of .this kind, Ifit bedesired to copy statuesthe bed-.plate ,35 4is removed andsuitablelcenter stocks substituted therefor, the pattern and work-pieces beingarranged between the centers ofvsaid stocks.

TOO

V mounted thereon one pair of said spindles and also connected by onepair of said spindles to a support, rods connecting correspondingmembers of said frames to insure movement thereof in unison,horizontally movable frame members 10 connected to said first-mentionedframes, vertically-swinging members mounted on said members 10, atool-support carried by said vertically-swinging members, and meanswherebysaid'tool-support may be inclined with respect to the vertical.

6. A carving-machine comprising a bedplate for the Aattern and materialto be carved, pairs o )vertical spindles, one of said pairs beingconnected to a stationary support, pairs of carrying-frames articulatedby one pair of said spindles and adapted to swing in a horizontal plane,rods connecting corresponding members of'said frames to insure movementthereof in unison, horizon- After one side of the pattern has beencopied the operator rotates the pattern, together `with the material onwhich the pattern is copied, a portion of a revolution, the work beingheld in required positions by any suitable mechanism, and the operationis continued until the work is finished.

What l claim is- 1. A carving-machine ofthe class described comprising auniversally-movable tool-support, a tracer adjustably mounted thereon, aplurality of carving-tools, tool-holders therefor comprising outersleeves rigidly secured to said support and provided with beveledportions, and inner sleeves having pins engaging said beveled portions.

A 2. A carving-machine of the class described comprising auniversally-movable tool-support, a plurality ofcarving-tools,tool-holders thereforr4 comprising outer clampingsleeves rigidly securedto said support and beveled on the upper ends, and inner bearing-sleevesrovidedwith pins engaging said beveled en s.

3. A carving-machine of the class described comprising a toolsupport, aplurality of carving-tools, tool-holders therefor comprising outerclamping-sleeves rigidly secured tosaid support and beveled on the upperends, and inner bearing-sleeves provided with pins engaging said beveledends;

4. A'carving-machine comprising in combination a supporting-frame, abed-plate for supporting the pattern and material to 'be carved, threesets of vertical spindles 3, 6 and 9, one set of spindles 3 beingmounted in stationary parts, pairs of carrying-frames 4 and 7 pivotallyunited by spindles 6, said frames 4 being directly connected to spindles3, the outer ends of said frames 7 carrying spindles 9, rods connectingcorresponding members of said, carryingframes to insure movement thereofin unison, spindles 11, frame members 10 connecting said spindles 9 and11, rods 12 connected with said spindles 11, a tool-support, andvertically-swinging arms 13 and 15 connecting said support to thespindles 11.

5 A carving-machine comprising a bedplate for the pattern. and materialto be carved, pairs of vertical spindles, pairs of horizontally-swingingframes articulated by ing members mounted thereon, a tool-supportcarried by said verticallyswinging members, means whereby thetool-support maybe inclined with respect to the vertical, and meanspreventing movement of said tool- 'support below a predeterminedv pointand permitting free movement thereof above said point. i

7. A carving-machine comprising a bedplate for the attern and materialto be carved, pairs o pairs being connected to a stationary support,pairs of carrying-frames articulated by one pair of said spindles andadapted to swing in a horizontal plane, rods connecting correspondingmembers of said frames to insure movement thereof in unison,horizontally-movable members 10, vertically-swinging members mountedthereon, a tool-support carried by said verticallyswinging members, andmeans preventing movement of said tool-support below a predeterminedpoint and permitting free movement thereof above said point.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES SMITZ VAN ACKER.

Witnesses:

T. VAN SHELDON, MICHEL DEDRICK.

tally-movable members 10, vertically-swingvertical spindles, one of said

